EP0265757A2 - Method and arrangement for rolling continuously cast profiles - Google Patents

Method and arrangement for rolling continuously cast profiles Download PDF

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Publication number
EP0265757A2
EP0265757A2 EP87114862A EP87114862A EP0265757A2 EP 0265757 A2 EP0265757 A2 EP 0265757A2 EP 87114862 A EP87114862 A EP 87114862A EP 87114862 A EP87114862 A EP 87114862A EP 0265757 A2 EP0265757 A2 EP 0265757A2
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EP
European Patent Office
Prior art keywords
stand
universal
web
stands
rolling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP87114862A
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German (de)
French (fr)
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EP0265757A3 (en
EP0265757B1 (en
Inventor
Georg Engel
Dietmar Kosak
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SMS Siemag AG
Original Assignee
SMS Schloemann Siemag AG
Schloemann Siemag AG
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Application filed by SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Priority to AT87114862T priority Critical patent/ATE87514T1/en
Publication of EP0265757A2 publication Critical patent/EP0265757A2/en
Publication of EP0265757A3 publication Critical patent/EP0265757A3/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/14—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel in a non-continuous process, i.e. at least one reversing stand
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
    • B21B1/466—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a non-continuous process, i.e. the cast being cut before rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/088—H- or I-sections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/001—Convertible or tiltable stands, e.g. from duo to universal stands, from horizontal to vertical stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B2013/003—Inactive rolling stands
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
    • Y10T29/49988—Metal casting
    • Y10T29/49991—Combined with rolling

Definitions

  • the invention relates to a method for rolling shaped steel from a furnace, for example a continuous furnace, taken from continuously cast profiles by means of universal stands combined in a compact group, working in reversing operation, one of which is preceded by a flange compression stand, and a reversing tandem stand group Rolling the continuously cast profiles.
  • a rolling mill for the rolling of shaped steel, which has a heavy roughing stand that is operated in the reversing mode on the input side and that also has a reversing mode that operates over a longer roller table
  • Reverse tandem scaffolding group connects, which, again via a correspondingly long roller table, is followed by a finishing group on the output side.
  • DE-OS 36 27 729 a separate prefabricated group and the roller table upstream of it can be dispensed with if the second or last of the universal stands of the reversing tandem stand group is designed and operated as a finished stand.
  • the invention is based on the object of creating methods and arrangements for carrying them out which permit relatively large or smaller output profiles to be created from a given input profile with relatively little effort.
  • the web of the continuously extruded profile can either be compressed or shortened as required, or it can be rolled out, if necessary with the help of relatively easy-to-manufacture reinforcements of the web of the extruded profile, and the width of the flanges can be reduced if necessary that the range of I-beams that can be produced from one or only a slightly varied initial continuous casting profile can be expanded considerably with little effort.
  • liquid steel is fed from a pan 1 into a distributor 2, which feeds the mold 3.
  • the strand is advanced along a support device 4 by cold strand drivers 5 and when passing direction drivers 6 directed.
  • scissors or flame cutting machines are provided for dividing the strand after solidification.
  • the continuously cast profiles can be used hot or cold. When hot, they are, as indicated in the drawing, fed directly to a continuous furnace 8, which ensures the optimum rolling temperature.
  • the profiles separated from the strand are pushed onto a storage rack, not shown, from which they can be temporarily stored in a cold store, for example by means of a crane.
  • the continuous furnace 8 which can be equipped with a walking beam bed and / or an oven roller table, and after reaching the optimum temperature for rolling, are pushed out onto the roller table 7 in the direction of the following compact rolling mill.
  • the compact rolling mill consists of an edging stand, in the drawing a vertical edging stand 9, a subordinate universal stand 10 used as a work stand, then a (horizontal) flanged edging stand 11, which is followed by another universal stand 12, which is expediently designed and operated as a finishing stand becomes.
  • the continuously cast profiles which are divided by a pair of scissors, a flame cutting machine or the like, are fed to the stands either in direct use or from the cold store, advantageously via a furnace which sets and secures the rolling temperature, in the exemplary embodiment the continuous furnace 8.
  • the stitches of the stands are like normally set in reverse operation.
  • the universal stands 10 and 12 can also be equipped and operated as universal stands or can be operated with duo roller sets as duo stands.
  • the stand 10 has proven useful here to use the stand 10 as a working stand with full normal reduction, while the universal stand 12 is operated as a finishing stand, that is to say with a reduced reduction compared to the universal stand 10, so that the same roll service lives are achieved with a corresponding choice of reductions and rolling qualities .
  • Reversing is customary here, so that, for example, three passes, there are six universal stitches with the universal stands 10 and 12 and three upsetting stitches with the flanges-upsetting stand 11.
  • the upstream compression frame 9 remains open during the rolling of conventional profiles and is therefore ineffective.
  • the vertical rolls of the universal stand 10 can have a bale in the form of two opposing truncated cones which taper towards the roll neck, so that when rolling in the universal roll stand 10, the flanges of I-beams are slightly angled in a V-shape and one speaks of an X-calibration, while the vertical rollers of the universal stand 12 are essentially cylindrical, so that flanges which are perpendicular to the web height result in accordance with an H-calibration.
  • the upsetting frame 9 is additionally used with vertically standing rollers and is set against the flanges of the initial profile. By compressing the flanges of the input profile, the web is compressed and thus shortened.
  • the use of this upsetting frame 9, especially if it is a one-time upsetting stitch, can be carried out in parallel with a reshaping in the following stands, so that a continuous casting profile to be rolled is inserted into the upsetting frame 9 and after upsetting the web or reducing the The web height continues to run into the following universal stand 10, the flange compression stand 11 and the universal stand 12. After passing through and reversing, the upsetting frame 9 is opened so far that only the universal frame 12, the flanges upsetting frame 11 and the universal frame 10 are involved in the following stitches.
  • the rollers of the universal stands 10 and 12 and, if appropriate, of the flange compression frame 11 are moved so far apart that the first two stitches of the compression frame 9 are not hindered, and only during the third pass of the continuous casting profile the roller sets of the Universalgerü Ste 10 and 12 as well as the flanges-compression stand 10 employed.
  • areas of roll bales of a further upstream, upright, upset frame or else of the flange upset 11 can be placed against the web of the profile in order to prevent the same from buckling during upsetting or to straighten it again.
  • the upsetting stand 9 can also be designed as a so-called tilting stand, which can be pivoted through 90 ° about the rolling stock axis, so that it can be used either as a horizontal or as a vertical stand.
  • the flange compression frame can be used as a corresponding horizontal frame.
  • a horizontal compression frame can be provided. In each of these cases, caliber parts that can be adjusted against the flanks of the flanges are used, but rather parts of the caliber of the rollers that are effective in the area of the web of the profile to be rolled.
  • Such horizontal frameworks can be used particularly effectively if a continuously cast "dog-bone" profile is used, the web of which is reinforced at least in some areas.
  • Such reinforcements can generally be obtained without replacing the continuous casting mold 3, for example by moving parts of the mold against each other or by removing parts used from the mold. Especially with such at least in their central region reinforced webs can be achieved by rolling them out a considerable extension and thus increase the lancing height.
  • the usual heavy roughing stand which is loaded with up to 15 preforming stitches, for example, is saved as well as the roller tables assigned to it, and it is worked with an already shaped and adapted to the product, continuously cast profile in the entrance of a reversing tandem stand group, without that the advantageous use of essentially a continuously cast profile would disadvantageously limit the range of finished profiles to be created from it.
  • an upstream compression stand 9 designed as a vertical stand web heights can be reduced without any problems, wherein, if appropriate in accordance with the shape of the vertical rolls of the first universal stand, conical frustum in the form of truncated cones, which taper towards the roll neck, can be used, but also cylindrical ones Rollers are usable.
  • a further saving can be achieved according to the figure by dispensing with a downstream finishing stand or a downstream finishing group and by executing and using the last stand of the reversing tandem stand group as a finishing stand. It has proven useful to set smaller stitch reductions than the universal scaffold 10 used as a work scaffold. The possibilities of influencing can be increased if either a horizontal compression scaffold 9 is provided in addition to the vertical compression scaffold 9 or a tilting scaffold is provided which is provided by a 90 ° swivel movement either as vertical or as horizontal scaffold can be used. Finally, there is also the possibility of replacing the vertical upsetting frame 9 with a corresponding horizontal upsetting frame.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)

Abstract

A hot profile-steel workpiece having a flange width dimension, a web height dimension, and a web thickness dimension is rolled in a roll train including a reversible univerial rolling stand and a flange-compacting roll stand unstream therefrom. According to the invention one of the height, width, or thickness dimensions of the incoming workpiece is reduced upstream of the flange-engaging compacting roll stand. Normally the web height dimension is reduced in a roll stand immediately upstream of the universal and flange-compacting stands. Furthermore the workpiece has a web with extra-thick parts and these extra-thick parts are rolled out by horizontal rolls of a roll stand that engage this web. The flange-compacting roll stand engages the faces of the flanges. With this system it is possible to make the web of the incoming workpiece either shorter or taller, that is it can either be compacted or rolled out.

Description

Die Erfindung betrifft ein Verfahren zum Walzen von Form­stahl aus zweckmäßig einem Ofen, bspw. einem Durchlaufofen, entnommenen stranggegossenen Profilen mittels zu einer Kom­paktgruppe zusammengefaßter, im Reversierbetrieb arbeitender Universalgerüste, deren einem ein Flanschen-Stauchgerüst vorgeordnet ist, sowie eine Umkehr-Tandem-Gerüstgruppe zum Walzen der stranggegossenen Profile.The invention relates to a method for rolling shaped steel from a furnace, for example a continuous furnace, taken from continuously cast profiles by means of universal stands combined in a compact group, working in reversing operation, one of which is preceded by a flange compression stand, and a reversing tandem stand group Rolling the continuously cast profiles.

Üblicherweise wird, bspw. entsprechend der Firmendruck­schrift W 2/3115 der SMS Schloemann-Siemag AG, Düsseldorf, zum Walzen von Formstahl eine Walzstraße vorgesehen, die eingangsseitig ein im Reversierbetrieb betriebenes schweres Vorgerüst aufweist, dem sich über einen längeren Rollgang eine ebenfalls im Reversierbetrieb arbeitende Umkehr-Tan­dem-Gerüstgruppe anschließt, der, wiederum über einen ent­sprechend langen Rollgang, ausgangsseitig eine Fertiggruppe folgt. Nach der DE-OS 36 27 729 kann auf eine gesonderte Fertiggruppe sowie den dieser vorgeordneten Rollgang ver­zichtet werden, wenn das zweite bzw. letzte der Universal­gerüste der Umkehr-Tandem-Gerüstgruppe als Fertiggerüst ausgebildet ist und betrieben wird. Auch auf das schwere Vorgerüst mit einer gegebenenfalls hohen Anzahl von Vorsti­chen kann verzichtet werden, wenn nicht Blöcke zum Formstahl herabgewalzt werden, sondern stranggegossene Profile zur Verfügung stehen. Bei der Wahl der Stranggußkokille versucht man hierbei, den Querschnitt des Stranggußprofiles derart zu beeinflussen, daß zum Walzen üblicher Endprofile bereits erste Vorkehrungen getroffen sind und diese ohne weitere Maßnahmen in das erste der Universalgerüste einzutreten vermögen. Bewährt hat es sich hierbei, ein Vorprofil zu erstellen, das beidendig eines Steges bereits Verstärkungen aufweist, und das als "Hundeknochen"- bzw. "dog-bone"-Profil bezeichnet wird.Usually, for example in accordance with company publication W 2/3115 of SMS Schloemann-Siemag AG, Düsseldorf, a rolling mill is provided for the rolling of shaped steel, which has a heavy roughing stand that is operated in the reversing mode on the input side and that also has a reversing mode that operates over a longer roller table Reverse tandem scaffolding group connects, which, again via a correspondingly long roller table, is followed by a finishing group on the output side. According to DE-OS 36 27 729, a separate prefabricated group and the roller table upstream of it can be dispensed with if the second or last of the universal stands of the reversing tandem stand group is designed and operated as a finished stand. Even on the heavy A roughing stand with a possibly high number of preliminary stitches can be omitted if blocks are not rolled down to form steel, but continuously cast profiles are available. When selecting the continuous casting mold, an attempt is made to influence the cross section of the continuous casting profile in such a way that first precautions have already been taken for rolling conventional end profiles and these can enter the first of the universal stands without further measures. It has proven useful here to create a preliminary profile which already has reinforcements at both ends of a web and which is referred to as a "dog bone" or "dog bone" profile.

Es hat sich hierbei allerdings herausgestellt, daß die Ab­messungen eines solchen Vorprofiles bereits weitgehend die mittels der Umkehr-Tandem-Gerüstgruppe leicht erzielbaren Endprofile bestimmen, die, bspw. im Falle von I-Träger-Pro­filen, vermittels von Universalgerüsten erstellt werden, während im Falle bspw. von U-Profilen bereits eine Duo-Wal­zung zum Erfolg führen kann. Da jedoch ein Wechsel des Strangguß-Profiles neue Kokillen und damit Umrüstarbeiten und die mit diesen verbundenen unvorteilhaften Stillstands­zeiten bedingt, ist man bestrebt, nach Möglichkeit mit einem vorgegebenen Eingangsprofil auszukommen, wobei zwar ein mittlerer Querschnittsbereich der Ausgangsprofile sich prob­lemlos erreichen läßt, von diesen abweichende stärkere oder schwächere Profile jedoch einen hohen zusätzlich Aufwand bedingen.It has been found here, however, that the dimensions of such a preliminary profile largely determine the end profiles that can easily be achieved by means of the reversing tandem scaffolding group, which, for example in the case of I-beam profiles, are created by means of universal scaffolds, while in the case For example, a duo-roll of U-profiles can already lead to success. However, since a change in the continuous casting profile necessitates new molds and therefore conversion work and the associated disadvantageous downtimes, efforts are made to make do with a given input profile where possible, although a medium cross-sectional area of the output profiles can be achieved without problems, and stronger ones deviating from them or weaker profiles, however, require a lot of additional effort.

Die Erfindung geht von der Aufgabe aus, Verfahren und Anord­nungen zu deren Durchführung zu schaffen, welche es gestat­ten, mit relativ geringem Aufwande aus einem vorgegebe­nen Eingangsprofil auch entsprechend größere oder kleinere Ausgangsprofile zu erstellen.The invention is based on the object of creating methods and arrangements for carrying them out which permit relatively large or smaller output profiles to be created from a given input profile with relatively little effort.

Gelöst wird diese Aufgabe mit den in den Ansprüchen 1 bis 4 benannten Merkmalen. Hierdurch läßt sich der Steg des zuge­führten stranggegossenen Profiles jeweils nach Bedarf entwe­der zusätzlich stauchen und damit verkürzen, oder er läßt sich, gegebenenfalls unter Einbeziehung relativ leicht her­stellbarer Verstärkungen des Steges des Strangußprofiles, stärker auswalzen, und gegebenenfalls läßt sich die Breite der Flansche reduzieren, so daß die Palette der aus einem bzw. einem nur leicht variierten Ausgangs-Stranggußprofil herstellbaren I-Träger sich mit geringem Aufwande wesentlich erweitern läßt.This object is achieved with the features specified in claims 1 to 4. As a result, the web of the continuously extruded profile can either be compressed or shortened as required, or it can be rolled out, if necessary with the help of relatively easy-to-manufacture reinforcements of the web of the extruded profile, and the width of the flanges can be reduced if necessary that the range of I-beams that can be produced from one or only a slightly varied initial continuous casting profile can be expanded considerably with little effort.

Zweckmäßige und vorteilhafte Weiterbildungen der Erfindung sind den Unteransprüchen zu entnehmen.Appropriate and advantageous developments of the invention can be found in the subclaims.

Im einzelnen ist die Erfindung anhand der folgenden Be­schreibung von Ausführungsbeispielen in Verbindung mit einer diese darstellenden Zeichnung erläutert. In dieser Zeichnung sind schematisch die Herstellung eines Stranggußprofiles, dessen Temperierung in einem Durchlaufofen sowie eine zum Walzen benutzte Kompakt-Gerüstgruppe dargestellt.The invention is explained in more detail on the basis of the following description of exemplary embodiments in conjunction with a drawing representing the same. In this drawing, the production of a continuous casting profile, its temperature control in a continuous furnace and a compact stand group used for rolling are shown schematically.

Im einzelnen wird aus einer Pfanne 1 flüssiger Stahl in einen Verteiler 2 gegeben, welcher die Kokille 3 speist. Der Strang wird entlang einer Stützvvorrichtung 4 durch Kalt­strangtreiber 5 vorgeschoben und beim Passieren von Richt­ treibern 6 gerichtet. Zum Aufteilen des Stranges nach der Erstarrung sind zur Vereinfachung der Zeichnung in dieser nicht dargestellte Scheren oder Brennschneidmaschinen vorge­sehen. Entsprechend dem jeweiligen Produktionsprogramm des Walzwerkes können die stranggegossenen Profile heiß oder kalt eingesetzt werden. Beim Heißeinsatz werden sie, wie in der Zeichnung angedeutet, direkt einem Durchlaufofen 8 zuge­führt, welcher die optimale Walztemperatur sichert. Im Falle des Kalteinsatzes werden die vom Strang abgetrennten Profile auf einen nicht dargestellten Lagerrost abgeschoben, von dem aus sie, bspw. vermittels eines Kranes, in einem Kaltlager zwischengelagert werden können. Zum Zwecke des Walzens wer­den auch sie dem Durchlaufofen 8 zugeführt, der mit einem Hubbalkenbett und/oder einem Ofenrollgang ausgestattet sein kann, und werden nach Erreichen der zum Walzen optimalen Temperatur auf den Rollgang 7 in Richtung auf das folgende Kompaktwalzwerk ausgeschoben.In particular, liquid steel is fed from a pan 1 into a distributor 2, which feeds the mold 3. The strand is advanced along a support device 4 by cold strand drivers 5 and when passing direction drivers 6 directed. To simplify the drawing, scissors or flame cutting machines (not shown) are provided for dividing the strand after solidification. Depending on the respective production program of the rolling mill, the continuously cast profiles can be used hot or cold. When hot, they are, as indicated in the drawing, fed directly to a continuous furnace 8, which ensures the optimum rolling temperature. In the case of cold use, the profiles separated from the strand are pushed onto a storage rack, not shown, from which they can be temporarily stored in a cold store, for example by means of a crane. For the purpose of rolling, they are also fed to the continuous furnace 8, which can be equipped with a walking beam bed and / or an oven roller table, and after reaching the optimum temperature for rolling, are pushed out onto the roller table 7 in the direction of the following compact rolling mill.

Das Kompaktwalzwerk besteht aus einem Stauchgerüst, in der Zeichnung einem Vertikal-Stauchgerüst 9, einem nachgeordne­ten, als Arbeitsgerüst verwendeten Universalgerüst 10, einem dann folgenden (horizontalen) Flanschen-Stauchgerüst 11, dem ein weiteres Universalgerüst 12 folgt, das zweckmäßig als Fertiggerüst ausgebildet und betrieben wird.The compact rolling mill consists of an edging stand, in the drawing a vertical edging stand 9, a subordinate universal stand 10 used as a work stand, then a (horizontal) flanged edging stand 11, which is followed by another universal stand 12, which is expediently designed and operated as a finishing stand becomes.

Im Betriebe werden die stranggegossenen, durch eine Schere, eine Brennschneidmaschine oder dergleichen aufgeteilten Profile entweder im direkten Einsatz oder vom Kaltlager her zweckmäßig über einen die Walztemperatur einstellenden und sichernden Ofen, im Ausführungsbeispiel dem Durchlaufofen 8, den Gerüsten zugeführt. Beim Walzen üblicher, dem Strangguß­profil angepaßter Profile werden die Stiche der Gerüste wie im Reversierbetrieb üblich eingestellt. Hierbei können ent­sprechend den zu walzenden Profilen die Universalgerüste 10 und 12 auch als Universalgerüste bestückt und betrieben oder aber mit Duo-Walzensätzen bestückt als Duo-Gerüste betrieben werden. Bewährt hat es sich hierbei, das Gerüst 10 als Ar­beitsgerüst mit voller üblicher Reduktion einzusetzen, wäh­rend das Universalgerüst 12 als Fertiggerüst betrieben wird, das heißt, mit gegenüber dem Universalgerüst 10 verringerter Reduktion, so daß bei entsprechender Wahl der Reduktionen und Walzqualitäten gleiche Walzenstandzeiten erzielt werden. Üblich ist hierbei ein Reversieren, so daß bei bspw. drei Durchläufen sich sechs Universalstiche mit den Universalge­rüsten 10 und 12 und drei Stauchstiche mit dem Flanschen-­Stauchgerüst 11 ergeben. Das vorgeordnete Stauchgerüst 9 bleibt beim Walzen üblicher Profile geöffnet und damit un­wirksam. In an sich bekannter Weise können hierbei die Ver­tikalwalzen des Universalgerüstes 10 einen Ballen in Form zweier gegeneinandergesetzter Kegelstümpfe aufweisen, die sich zu den Walzenzapfen hin verjüngen, so daß beim Walzen im Universalwalzgerüst 10 die Flanschen von I-Trägern leicht V-förmig angewinkelt werden und man von einer X-Kalibrierung spricht, während die Vertikalwalzen des Universalgerüstes 12 im wesentlichen zylindrisch ausgebildet sind, so daß sich innerhalb einer rechtwinklig zur Steghöhe stehende Flanschen entsprechend einer H-Kalibrierung ergeben. Es ist aber auch möglich, auch das vorgelagerte Universalgerüst 10 mit zylin­drischen Walzen auszustatten, so daß in jedem Falle mit einer H-Kalibrierung gearbeitet wird und die Flansche in einer rechtwinklig zum Steg stehenden Ebene liegen. Hierbei wird davon ausgegangen, daß in üblicher Weise I-Profile gewalzt werden, indem die einseitig des Profils angeordneten Flanken der Flansche nach unten weisen bzw. auf den Rollgän­gen aufliegen und deren Stege horizontal in halber Höhe der Flanschen stehen.In operation, the continuously cast profiles, which are divided by a pair of scissors, a flame cutting machine or the like, are fed to the stands either in direct use or from the cold store, advantageously via a furnace which sets and secures the rolling temperature, in the exemplary embodiment the continuous furnace 8. When rolling customary profiles adapted to the continuous casting profile, the stitches of the stands are like normally set in reverse operation. According to the profiles to be rolled, the universal stands 10 and 12 can also be equipped and operated as universal stands or can be operated with duo roller sets as duo stands. It has proven useful here to use the stand 10 as a working stand with full normal reduction, while the universal stand 12 is operated as a finishing stand, that is to say with a reduced reduction compared to the universal stand 10, so that the same roll service lives are achieved with a corresponding choice of reductions and rolling qualities . Reversing is customary here, so that, for example, three passes, there are six universal stitches with the universal stands 10 and 12 and three upsetting stitches with the flanges-upsetting stand 11. The upstream compression frame 9 remains open during the rolling of conventional profiles and is therefore ineffective. In a manner known per se, the vertical rolls of the universal stand 10 can have a bale in the form of two opposing truncated cones which taper towards the roll neck, so that when rolling in the universal roll stand 10, the flanges of I-beams are slightly angled in a V-shape and one speaks of an X-calibration, while the vertical rollers of the universal stand 12 are essentially cylindrical, so that flanges which are perpendicular to the web height result in accordance with an H-calibration. However, it is also possible to equip the upstream universal stand 10 with cylindrical rollers, so that in any case an H calibration is used and the flanges lie in a plane perpendicular to the web. It is assumed that I-profiles are rolled in the usual way by arranging them on one side of the profile Point the flanks of the flanges downwards or rest on the roller tables with their webs standing horizontally halfway up the flanges.

Gilt es, gegenüber dem Ausgangsprofil verringerte Steghöhen zu erreichen, so wird zusätzlich das Stauchgerüst 9 mit vertikal stehenden Walzen eingesetzt und gegen die Flansche des Eingangsprofiles angestellt. Durch das Zusammenpressen der Flansche des Eingangsprofiles wird eine Stauchung und damit Verkürzung von dessen Steg bewirkt. Die Benutzung dieses Stauchgerüstes 9 kann, insbesondere wenn es sich um einen einmaligen Stauchstich handelt, parallel mit einer Umformung in den folgenden Gerüsten vorgenommen werden, so daß ein zu walzendes Stranggußprofil in das Stauchgerüst 9 eingeführt wird und nach Stauchen des Steges bzw. der Redu­zierung der Steghöhe kontinuierlich weiter in das folgende Universalgerüst 10, das Flanschen-Stauchgerüst 11 und das Universalgerüst 12 einläuft. Nach Durchlaufen und dem Re­versieren wird das Stauchgerüst 9 so weit geöffnet, daß an den folgenden Stichen nur das Universalgerüst 12, das Flan­schen-Stauchgerüst 11 und das Universalgerüst 10 beteiligt sind.If it is necessary to achieve reduced web heights compared to the initial profile, the upsetting frame 9 is additionally used with vertically standing rollers and is set against the flanges of the initial profile. By compressing the flanges of the input profile, the web is compressed and thus shortened. The use of this upsetting frame 9, especially if it is a one-time upsetting stitch, can be carried out in parallel with a reshaping in the following stands, so that a continuous casting profile to be rolled is inserted into the upsetting frame 9 and after upsetting the web or reducing the The web height continues to run into the following universal stand 10, the flange compression stand 11 and the universal stand 12. After passing through and reversing, the upsetting frame 9 is opened so far that only the universal frame 12, the flanges upsetting frame 11 and the universal frame 10 are involved in the following stitches.

Zum stärkeren Stauchen der Steghöhe kann es erforderlich werden, auch das Stauchgerüst 9 mehrfach, d.h. im Reversier­betrieb, zu benutzen. Hierbei werden für den ersten Stich und das erste Zurückführen des Stranggußprofiles die Walzen der Universalgerüste 10 und 12 sowie gegebenenfalls des Flanschen-Stauchgerüstes 11 so weit auseinandergefahren, daß die beiden ersten Stiche des Stauchgerüstes 9 nicht behin­dert werden, und erst während des dritten Durchlaufes des Stranggußprofiles werden die Walzensätze der Universalgerü­ ste 10 und 12 sowie des Flanschen-Stauchgerüstes 10 ange­stellt. Hierbei können Bereiche von Walzenballen eines wei­teren vorgeordneten, Horizontalwalzen aufweisenden Stauchge­rüstes oder aber des Flanschen-Stauchgerüstes 11 gegen den Steg des Profiles angestellt werden, um ein Ausknicken des­selben beim Stauchen zu unterbinden, oder ihn erneut zu richten.For more upsetting the web height, it may be necessary to also use the upsetting frame 9 several times, ie in reversing operation. Here, for the first stitch and the first return of the continuous casting profile, the rollers of the universal stands 10 and 12 and, if appropriate, of the flange compression frame 11 are moved so far apart that the first two stitches of the compression frame 9 are not hindered, and only during the third pass of the continuous casting profile the roller sets of the Universalgerü Ste 10 and 12 as well as the flanges-compression stand 10 employed. Here, areas of roll bales of a further upstream, upright, upset frame or else of the flange upset 11 can be placed against the web of the profile in order to prevent the same from buckling during upsetting or to straighten it again.

Umgekehrt ist es möglich, um größere Steghöhen zu erzielen, das Vertikalwalzen aufweisende Stauchgerüst 9 gegen ein Horizontalwalzen aufweisendes Stauchgerüst auszutauschen. Andererseits kann auch das Stauchgerüst 9 als sogenanntes Kippgerüst ausgeführt sein, das sich um 90° um die Walzgut­achse schwenken läßt, so daß es wahlweise als Horizontal- ­oder als Vertikalgerüst einsetzbar ist. Des weiteren ist es noch möglich, das Flanschen-Stauchgerüst als entsprechendes Horizontalgerüst einzusetzen. Ferner kann zusätzlich zum vertikalen Stacuhgerüst 9 ein horizontales Stauchgerüst vorgesehen sein. In jeden dieser Fälle werden hierbei nicht gegen die Flanken der Flansche anstellbare Kaliberteile benutzt, sondern vielmehr im Bereiche des Steges des zu walzenden Profiles wirksame Teile der Kaliber der Walzen. Durch das stärkere Auswalzen der Stegbereiche des Strangguß­profiles wird eine Verbreiterung der Profilkammer bzw. eine Vergrößerung der Steghöhe erzielt. Besonders wirkungsvoll lassen sich solche Horizontalgerüste anwenden, wenn ein Stranggegossenes "dog-bone"-Profil benutzt wird, dessen Steg mindestens bereichsweise verstärkt ist. Solche Verstärkungen lassen sich im allgemeinen ohne Austausch der Strangguß-Ko­kille 3 erhalten, bspw. indem Teile der Kokille gegeneinan­der verschoben werden oder aber der Kokille eingesetzte Teile entnommen werden. Insbesondere bei solch mindestens in ihrem mittleren Bereich verstärkten Stegen läßt sich durch Auswalzen desselben eine erhebliche Streckung und damit Vergrößerung der Stechhöhe erreichen.Conversely, in order to achieve greater web heights, it is possible to replace the compression stand 9 having vertical rolling with a compression stand having horizontal rolling. On the other hand, the upsetting stand 9 can also be designed as a so-called tilting stand, which can be pivoted through 90 ° about the rolling stock axis, so that it can be used either as a horizontal or as a vertical stand. Furthermore, it is also possible to use the flange compression frame as a corresponding horizontal frame. Furthermore, in addition to the vertical stacking frame 9, a horizontal compression frame can be provided. In each of these cases, caliber parts that can be adjusted against the flanks of the flanges are used, but rather parts of the caliber of the rollers that are effective in the area of the web of the profile to be rolled. Due to the stronger rolling out of the web areas of the continuous cast profile, the profile chamber is widened or the web height is increased. Such horizontal frameworks can be used particularly effectively if a continuously cast "dog-bone" profile is used, the web of which is reinforced at least in some areas. Such reinforcements can generally be obtained without replacing the continuous casting mold 3, for example by moving parts of the mold against each other or by removing parts used from the mold. Especially with such at least in their central region reinforced webs can be achieved by rolling them out a considerable extension and thus increase the lancing height.

In allen diesen Fällen wird das mit bspw. bis zu 15 Vorform­stichen belastete übliche schwere Vorgerüst ebenso einge­spart wie die diesem zugeordneten Rollgänge, und es wird mit einem bereits vorgeformten und dem Erzeugnis angepaßten, stranggegossenem Profil im Eingang einer Umkehr-Tandem-Ge­rüstgruppe gearbeitet, ohne daß bei der vorteilhaften Ver­wendung im wesentlichen eines stranggegossenen Profiles die Palette der aus diesem zu erstellenden Fertigprofile unvor­teilhaft eingeschränkt wäre. Im Falle eines vorgeordneten, als Vertikalgerüst ausgebildeten Stauchgerüstes 9 lassen sich Steghöhen problemlos reduzieren, wobei, gegebenenfalls in Übereinstimmung mit der Form der Vertikalwalzen des er­sten Universalgerüstes, in Form aneinandergesetzter Kegel­stümpfe ausgeführte, sich jeweils zu den Walzenzapfen hin verjüngende Walzen einsetzbar sind, jedoch auch zylinderför­mige Walzen benutzbar sind. Eine weitere Einsparung läßt sich gemäß der Figur erreichen, indem auf ein nachgeordnetes Fertiggerüst oder eine nachgeordnete Fertiggruppe verzichtet wird und das letzte Gerüst der Umkehr-Tandem-Gerüstgruppe als Fertiggerüst ausgeführt und verwendet wird. Hierbei hat es sich bewährt, jeweils geringere Stichabnahmen einzustel­len als bei dem als Arbeitsgerüst verwendeten Universalge­rüst 10. Die Möglichkeiten der Beeinflussung lassen sich steigern, wenn entweder zusätzlich zum Vertikal-Stauchgerüst 9 ein Horizontal-Stauchgerüst vorgesehen ist oder aber ein Kippgerüst vorgesehen ist, das durch eine 90° umfassenden Schwenkbewegung wahlweise als Vertikal- oder als Horizontal­ gerüst nutzbar ist. Schließlich besteht noch die Möglich­keit, das Vertikal-Stauchgerüst 9 durch ein entsprechendes Horizontal-Stauchgerüst zu ersetzen.In all these cases, the usual heavy roughing stand, which is loaded with up to 15 preforming stitches, for example, is saved as well as the roller tables assigned to it, and it is worked with an already shaped and adapted to the product, continuously cast profile in the entrance of a reversing tandem stand group, without that the advantageous use of essentially a continuously cast profile would disadvantageously limit the range of finished profiles to be created from it. In the case of an upstream compression stand 9 designed as a vertical stand, web heights can be reduced without any problems, wherein, if appropriate in accordance with the shape of the vertical rolls of the first universal stand, conical frustum in the form of truncated cones, which taper towards the roll neck, can be used, but also cylindrical ones Rollers are usable. A further saving can be achieved according to the figure by dispensing with a downstream finishing stand or a downstream finishing group and by executing and using the last stand of the reversing tandem stand group as a finishing stand. It has proven useful to set smaller stitch reductions than the universal scaffold 10 used as a work scaffold. The possibilities of influencing can be increased if either a horizontal compression scaffold 9 is provided in addition to the vertical compression scaffold 9 or a tilting scaffold is provided which is provided by a 90 ° swivel movement either as vertical or as horizontal scaffold can be used. Finally, there is also the possibility of replacing the vertical upsetting frame 9 with a corresponding horizontal upsetting frame.

Claims (17)

1. Verfahren zum Walzen von Formstahl aus zweckmäßig einem Ofen, bspw. einem Durchlaufofen, entnommenen stranggegos­senen Profilen mittels zu einer Kompaktgruppe zusammenge­faßter, im Reversierbetrieb arbeitender Universalgerüste, deren einem ein Flanschen-Stauchgerüst vorgeordnet ist,
dadurch gekennzeichnet,
daß zur Erstellung von Formstahl-Profilen abweichender Abmessungen, insbesondere geringerer Steghöhe, mittels mindestens eines den Gerüsten der Kompaktgruppe vorgeord­neten, anstellbaren Stauchgerüstes die Steghöhe, die Stegdicke und/oder die Flanschenbreite des stranggegosse­nen Profiles reduziert werden.1. A method for the rolling of shaped steel from a furnace, for example a continuous furnace, taken from continuously cast profiles by means of universal stands, which are combined into a compact group and work in reversing operation, one of which is preceded by a flange-upsetting stand,
characterized,
that to create shaped steel profiles of different dimensions, in particular a lower web height, the web height, the web thickness and / or the flange width of the continuously cast profile are reduced by means of at least one adjustable upstand which is arranged upstream of the stands of the compact group. 2. Verfahren zum Walzen von Formstahl nach Anspruch 1,
dadurch gekennzeichnet,
daß mittels eines der Kompaktgruppe vorgeordneten, in Längsrichtung der Profilstege anstellbaren vertikalen Stauchgerüstes die Höhe der Profilstege der stranggegos­senen Profile reduzierbar ist.2. A method for rolling shaped steel according to claim 1,
characterized,
that the height of the profile webs of the continuously cast profiles can be reduced by means of a vertical compression frame arranged upstream of the compact group and adjustable in the longitudinal direction of the profile webs. 3. Verfahren zum Walzen von Formstahl nach Anspruch 1,
dadurch gekennzeichnet,
daß zur Erstellung von Profilen vergrößerter Abmessungen, insbesondere größerer Steghöhe, stranggegossene Profile eingesetzt werden, welche vorzugsweise im Bereiche ihrer Stegmitte eine Verstärkung aufweisen, und daß deren Steg mittels eines als Horizontalgerüst ausgebildeten, in Querrichtung des Steges anstellbaren Stauchgerüstes aus­gewalzt wird.3. A method for rolling shaped steel according to claim 1,
characterized,
that for the production of profiles of larger dimensions, in particular greater web height, continuously cast profiles are used, which preferably have a reinforcement in the region of their web center, and that their web is rolled out by means of a compression stand designed as a horizontal stand and adjustable in the transverse direction of the web. 4. Verfahren zum Walzen von Formstahl nach Anspruch 1,
dadurch gekennzeichnet,
daß ein als Horizontalgerüst ausgebildetes Stauchgerüst gegen die Flanken der Flansche anstellbar ist.4. A method for rolling shaped steel according to claim 1,
characterized,
that a compression frame designed as a horizontal frame can be set against the flanks of the flanges. 5. Verfahren zum Walzen von Formstahl nach einem der Ansprü­che 1 bis 4,
dadruch gekennzeichnet,
daß das Stauchen bzw. Auswalzen des Steges und/oder der Flanken der stranggegossenen Profile mindestens teilweise bei geöffneten Universalgerüsten bewirkt wird.5. A method for rolling shaped steel according to one of claims 1 to 4,
marked,
that the upsetting or rolling out of the web and / or the flanks of the continuously cast profiles is at least partially effected when the universal stands are open. 6. Umkehr-Tandem-Gerüstgruppe mit vorzugsweise zwei Univer­salgerüsten (10, 12) und einem zwischen diesen wirksamen Flanschen-Stauchgerüst (11) zum Walzen von Formstahl nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
daß den Gerüsten (10 bis 12) ein in Längsrichtung der zu walzenden Stegprofile gegen deren Flansche anstellbares, als Vertikalgerüst ausgebildetes Stauchgerüst (9) vorge­ordnet ist.6. Reverse tandem stand group with preferably two universal stands (10, 12) and an effective flanging stand (11) between them for rolling shaped steel according to one of claims 1 to 5,
characterized,
that the stands (10 to 12) are arranged in the longitudinal direction of the web profiles to be rolled against their flanges and designed as a vertical stand upsetting stand (9). 7. Umkehr-Tandem-Gerüstgruppe mit vorzugsweise zwei Univer­salgerüsten (10, 12) und einem zwischen diesen wirksamen Flanschen-Stauchgerüst (11) zum Walzen von Formstahl nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet,
daß den Gerüsten (10 bis 12) ein gegen die Flanken der Profilstege und/oder gegen die Flanken der Flansche der stranggegossenen Profile anstellbares, als Horizontalge­rüst ausgebildetes Stauchgerüst vorgeordnet ist.7. Reverse tandem stand group with preferably two universal stands (10, 12) and an effective flanging stand (11) between them for rolling shaped steel according to one of claims 1 to 6,
characterized,
that the stands (10 to 12) are arranged upstream of the flanks of the profile webs and / or against the flanks of the flanges of the continuously cast profiles, designed as horizontal stands. 8. Umkehr-Tandem-Gerüstgruppe nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet,
daß ihr ein durch Umstellung als Horizontal- oder als Vertikalgerüst nutzbares Kippgerüst (9) vorgeordnet ist.8. reverse tandem scaffolding group according to one of claims 1 to 7,
characterized,
that it is preceded by a tilting scaffold (9) that can be used as a horizontal or vertical scaffolding. 9. Umkehr-Tandem-Gerüstgruppe nach einem der Ansprüche 6 bis 8,
dadurch gekennzeichnet,
daß ihr eine Fertig-Gerüstgruppe nachgeordnet ist.9. Reverse tandem scaffolding group according to one of claims 6 to 8,
characterized,
that a prefabricated scaffolding group is subordinate to it. 10. Umkehr-Tandem-Gerüstgruppe nach einem der Ansprüche 6 bis 8,
dadurch gekennzeichnet,
daß das letzte Universalgerüst (12) der Umkehr-Tandem Ge­rüstgruppe als Fertiggerüst ausgebildet und betrieben ist.10. Reverse tandem scaffolding group according to one of claims 6 to 8,
characterized,
that the last universal scaffold (12) of the reverse tandem scaffold group is designed and operated as a finished scaffold. 11. Umkehr-Tandem-Gerüstgruppe nach einem der Ansprüche 1 bis 10,
dadurch gekennzeichnet,
daß das Universal-Arbeitsgerüst (9) Vertikalwalzen mit doppelkonischen, sich zu den Walzenzapfen hin verjüngen­den Walzballen und das Universal-Fertiggerüst (12) Verti­kalwalzen mit zylindrisch geformten Ballen aufweisen.11. Reverse tandem scaffolding group according to one of claims 1 to 10,
characterized,
that the universal work stand (9) has vertical rollers with double-conical rolling balls tapering towards the roll neck and the universal finishing stand (12) has vertical rollers with cylindrical bales. 12. Umkehr-Tandem-Gerüstgruppe nach einem der Ansprüche 7 bis 10,
dadurch gekennzeichnet,
daß die Universal-Arbeitsgerüste (10, 12) sowie vorzugs­weise auch das Stauchgerüst (9) Vertikalwalzen mit im wesentlichen zylindrisch geformten Walzenballen aufwei­sen.12. Reverse tandem scaffolding group according to one of claims 7 to 10,
characterized,
that the universal working stands (10, 12) and preferably also the upsetting stand (9) have vertical rollers with essentially cylindrical roller balls. 13. Umkehr-Tandem-Gerüstgruppe nach einem der Ansprüche 6 bis 12,
dadurch gekennzeichnet,
daß das Stauchgerüst (9) doppelkonisch geformte, sich zu den Walzenzapfen hin verjüngende Walzballen seiner Verti­kalwalzen aufweist.13. Reverse tandem scaffolding group according to one of claims 6 to 12,
characterized,
that the upsetting stand (9) has double-conical shaped, tapering towards the roll neck roll bales of its vertical rolls. 14. Umkehr-Tandem-Gerüstgruppe nach einem der Ansprüche 6 bis 13,
dadurch gekennzeichnet,
daß die Universalgerüste (10, 12) gegen Duo-Gerüste aus­tauschbar sind.14. Reverse tandem scaffolding group according to one of claims 6 to 13,
characterized,
that the universal scaffolds (10, 12) are interchangeable with duo scaffolds. 15. Umkehr-Tandem-Gerüstgruppe nach einem der Ansprüche 6 bis 14,
dadurch gekennzeichnet,
daß die Universal-Walzensätze der Universalgerüste (10, 12) gegen Duo-Walzensätze austauschbar sind.15. Reverse tandem scaffolding group according to one of claims 6 to 14,
characterized,
that the universal roller sets of the universal stands (10, 12) are interchangeable with duo roller sets. 16. Umkehr-Tandem-gerüstgruppe nach einem der Ansprüche 1 bis 15,
dadurch gekennzeichnet,
daß das Universal-Fertiggerüst (12) für eine geringere Reduktion eingestellt wird als das Universal-Arbeitsge­rüst (10).16. Reverse tandem scaffolding group according to one of claims 1 to 15,
characterized,
that the universal finishing scaffold (12) is set for a smaller reduction than the universal scaffolding (10). 17. Umkehr-Tandem-Gerüstgruppe nach Anspruch 16,
dadurch gekennzeichnet,
daß die Reduktion des Universal-Fertig-Gerüstes (12) mindestens während des letzten Durchlaufes eines Walzpro­files nur 10% bis 90% deren des Universal-Arbeitsgerüstes (10) beträgt.17. Reverse tandem scaffolding group according to claim 16,
characterized,
that the reduction of the universal finished stand (12) is only 10% to 90% of that of the universal work stand (10) at least during the last pass through a rolled section.
EP87114862A 1986-10-27 1987-10-12 Method and arrangement for rolling continuously cast profiles Expired - Lifetime EP0265757B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87114862T ATE87514T1 (en) 1986-10-27 1987-10-12 METHOD AND ARRANGEMENT FOR ROLLING CONTINUOUSLY CAST PROFILES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3636478 1986-10-27
DE3636478A DE3636478C2 (en) 1986-10-27 1986-10-27 Process for rolling finished profiles from a preliminary profile

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EP0265757A3 EP0265757A3 (en) 1988-08-10
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EP (1) EP0265757B1 (en)
JP (1) JP2529704B2 (en)
KR (1) KR960012860B1 (en)
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0563551A1 (en) * 1992-04-01 1993-10-06 Preussag Stahl Aktiengesellschaft Method and device for manufacturing a profile
EP0653253A1 (en) * 1993-11-04 1995-05-17 Sms Schloemann-Siemag Aktiengesellschaft Method for rolling finished sections from section blanks by means of a reversibly driven arrangement of roll stands
WO1995029774A1 (en) * 1994-04-29 1995-11-09 Mannesmann Ag Process and device for rolling beams from preliminary sections
EP0734792A2 (en) * 1995-03-30 1996-10-02 MANNESMANN Aktiengesellschaft Group of universal rolling stands and method for the rolling of continuously cast preliminary sections
EP0870554A2 (en) * 1997-04-07 1998-10-14 Sms Schloemann-Siemag Aktiengesellschaft Rolling train for rolling flat steel
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US5082047A (en) * 1989-07-31 1992-01-21 Bricmanage, Inc. Method of continuously casting and rolling metallic strip
US5018666A (en) * 1989-12-01 1991-05-28 Cf&I Steel Corporation Unitary one quarter mile long railroad rail free of weld seams
DE19729991A1 (en) * 1997-07-12 1999-01-14 Schloemann Siemag Ag Process for casting and rolling and a rolling stand arrangement for rolling finished profiles (sheet piling profiles) from a preliminary profile close to the final dimension coming from a continuous casting device
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US6112409A (en) * 1997-11-14 2000-09-05 Cosma International Inc. Roll forming utilizing splitting technology
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EP0653253A1 (en) * 1993-11-04 1995-05-17 Sms Schloemann-Siemag Aktiengesellschaft Method for rolling finished sections from section blanks by means of a reversibly driven arrangement of roll stands
WO1995029774A1 (en) * 1994-04-29 1995-11-09 Mannesmann Ag Process and device for rolling beams from preliminary sections
EP0734792A2 (en) * 1995-03-30 1996-10-02 MANNESMANN Aktiengesellschaft Group of universal rolling stands and method for the rolling of continuously cast preliminary sections
EP0734792A3 (en) * 1995-03-30 1997-03-05 Mannesmann Ag Group of universal rolling stands and method for the rolling of continuously cast preliminary sections
CN1074690C (en) * 1995-03-30 2001-11-14 曼内斯曼股份公司 Universal frame set for rolling continuously-casted coarse structural section and method thereof
EP0870554A2 (en) * 1997-04-07 1998-10-14 Sms Schloemann-Siemag Aktiengesellschaft Rolling train for rolling flat steel
EP0870554A3 (en) * 1997-04-07 1999-06-02 Sms Schloemann-Siemag Aktiengesellschaft Rolling train for rolling flat steel
US6058754A (en) * 1997-04-07 2000-05-09 Sms Schloemann-Siemag Aktiengesellschaft Rolling train for rolling flat steel
KR102271507B1 (en) * 2021-02-16 2021-06-30 지대헌 Apparatus for transferring seat for recreational vehicle

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KR960012860B1 (en) 1996-09-25
JPS63115601A (en) 1988-05-20
US4860426A (en) 1989-08-29
DE3785138D1 (en) 1993-05-06
ES2039393T3 (en) 1993-10-01
ATE87514T1 (en) 1993-04-15
DE3636478A1 (en) 1988-04-28
DE3636478C2 (en) 1996-10-31
JP2529704B2 (en) 1996-09-04
EP0265757A3 (en) 1988-08-10
CN1016762B (en) 1992-05-27
CN87107839A (en) 1988-06-22
KR880004875A (en) 1988-06-27
EP0265757B1 (en) 1993-03-31

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